Thiothixene (sold as Navane®) is a thioxanthenedrug used as a typical antipsychotic medication. It is a thioxanthene derivative and is the cis isomer of N,Ndimethyl-
9-[3-(4-methyl-1-piperazinyl)-propylidene] thioxanthene-2-sulfonamide.

Becker, R. E. (1983). Implications of the efficacy of thiothixene and a chlorpromazine-imipramine combination for depression in schizophrenia: American Journal of Psychiatry Vol 140(2) Feb 1983, 208-211.